doctype html
html
  head
    link(rel="stylesheet" href="css/style.css")
  body
    h1 点击黑色方块区域来绘制像素图画
    .actions
      button.reset reset
    .seno
      p 单击每个方块绘图
      #canvas.canvas
    .seno 
      p 区域按住左键内拖拽绘图
      #canvas2.canvas
    .seno
      p 还没想好
      #canvas3.canvas
    script(src="http://cdn.staticfile.org/jquery/2.1.1-rc2/jquery.min.js")
    script(src="http://cdn.staticfile.org/lodash.js/2.4.1/lodash.js")
    script(src="js/main.js")
